195677923 has 6 divisors (see below), whose sum is σ = 227625396. Its totient is φ = 167723892.

The previous prime is 195677899. The next prime is 195677947. The reversal of 195677923 is 329776591.

It is an interprime number because it is at equal distance from previous prime (195677899) and next prime (195677947).

It is not a de Polignac number, because 195677923 - 2⁵ = 195677891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 3993427 = 195677923 / (1 + 9 + 5 + 6 + 7 + 7 + 9 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195677023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1996665 + ... + 1996762.

It is an arithmetic number, because the mean of its divisors is an integer number (37937566).

Almost surely, 2^195677923 is an apocalyptic number.

195677923 is a deficient number, since it is larger than the sum of its proper divisors (31947473).

195677923 is an equidigital number, since it uses as much as digits as its factorization.

195677923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993441 (or 3993434 counting only the distinct ones).

The product of its digits is 714420, while the sum is 49.

The square root of 195677923 is about 13988.4925206400. The cubic root of 195677923 is about 580.5602226775.

The spelling of 195677923 in words is "one hundred ninety-five million, six hundred seventy-seven thousand, nine hundred twenty-three".